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논문 기본 정보

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한국전산유체공학회 한국전산유체공학회 학술대회논문집 한국전산유체공학회 학술대회논문집 1998년도 추계
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    초록·키워드

    The Newton-Krylav method on the unstructured grid flow solver using the cell-centered spatial discrelization of compressible Euler equations is presented. This flow solver uses the reconstructed primitive variables to get the higher order solutions. To get the quadratic convergence of Newton method with this solver, the careful linearization of face flux is performed with the reconstructed flow variables.
    The GMRES method is used to solve large sparse matrix and to improve the performance ILU preconditioner is adopted and vectorized with level scheduling algorithm. To get the quadratic convergence with the higher order schemes and to reduce the memory storage, the matrix-free implementation and Barth's matrix-vector method are implemented and compared with the traditional matrix-vector method. The convergence and computing times are compared with each other.

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      UCI(KEPA) : I410-ECN-0101-2009-422-014588975